Antiques Roadshow: Pittsburgh, Part 1

Monday, February 17 at 9:00 p.m.

Tonight, the Roadshow showcases one of its most valuable finds ever.

In Pittsburgh, Pennsylvania, host Mark L. Walberg and appraiser Alasdair Nichol head to the Andy Warhol Museum to check out some early works of the Pittsburgh native from his pre-Factory days—eclectic illustrations that garner ample attention from today's collectors.

Other highlights include intimate correspondence between Cole Porter and actor Monty Woolley; a finely knotted circa 1920 silk Kashan rug; and one of the best flea market finds of all time: a 17th-century rhinoceros horn cup, purchased for $1 and valued at $350,000 to $450,000!